Blower Door Test in Medford township, NJ

Achieve peak energy efficiency and verify airtight construction with professional blower door test in Medford township, NJ. Our trained team assists homeowners, builders, and contractors by detecting hidden air leaks, boosting comfort, and meeting NJ energy regulations.

What Is A Blower Door Test?

A blower door test measures the air changes per hour within a home or building. Air exchange is a normal and healthy process that allows stale indoor air to be replaced with fresh air. Too many air changes, however, can be detrimental because every time the air is replaced, it must be reheated or recooled, leading to higher energy use and lower efficiency. Too many air changes can result in drafts and leaks that create discomfort and lead to moisture, mold, and condensation issues. A blower door test in Medford township, NJ makes it easier to locate leaks and inefficiencies early, ensuring lasting comfort and reduced energy waste.

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How Is A Blower Door Test Conducted?

For blower door test in Medford township, NJ, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. One primary exterior doorway is used, where a flexible aluminum frame and fabric panel are mounted tightly. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. These readings produce the air changes per hour (ACH) value, indicating both the home’s airtightness and efficiency within the NJ climate.

What Is A Passing Blower Door Test Score?

In Medford township, NJ, energy efficiency standards for homes are based on the 2015 International Energy Conservation Code (IECC) or more recent updates approved by the jurisdiction. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Satisfying this requirement in your blower door test in Medford township, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

The State of NJ and local municipalities have implemented the IECC code, which mandates blower door test on new and remodeled residential homes. Our team regularly helps home builders, contractors, and homeowners seeking blower door test in Medford township, NJ to satisfy energy code standards and close final inspections. You might also need a duct leakage test if HVAC systems or ducts are positioned outside the property’s thermal envelope. Learn more about energy code compliance.

Performing blower door test in Medford township, NJ allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. Completing a blower door test takes just a few hours, yet its long-lasting impact enhances comfort and performance in every NJseason.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Install an effective air barrier, for example Tyvek or Zip Sheathing, and make certain all seams are sealed with durable tape.
Ensure the insulation used meets the proper R-value and is well fitted throughout the structure’s building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Seal gaps and openings separating conditioned spaces from unconditioned areas, including crawl spaces, basements, and attics.
Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
Local Energy Audits brings thermal cameras, caulk, and spray foam to locate and seal leaks while performing on-site testing./li>
In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.

Preparing for a Blower Door Test in Medford township, NJ

We begin blower door test in Medford township, NJ by switching off the HVAC system and shutting down all exhaust fans throughout the home. Next, we check the home thoroughly to ensure all exterior openings — even those leading to garages or unfinished basements — are securely closed and within the thermal envelope. After sealing the home, we install the blower door frame and fan in a central exterior doorway. The fan depressurizes the home to 50 Pascals to provide accurate airflow and leakage readings. When the house is depressurized, outside air begins entering faster, exposing hidden leaks more effectively. A thermal imager helps us visualize temperature differences in walls, ceilings, and surfaces that separate conditioned and unconditioned spaces. Equipped with chalk, spray foam, and weatherstripping, we can directly assist homeowners or contractors in resolving visible air leakage problems on-site. After sealing the identified leaks, we retest right away to confirm that the desired blower door score meets local energy performance standards in Medford township, NJ.

Blower Door Test for Contractors in Medford township, NJ

When contractors perform blower door test in Medford township, NJ, minor issues in professionally insulated homes can usually be resolved during the inspection. Using materials like chalk and spray foam during the inspection, small leaks or gaps can be sealed right away. In over 90% of cases, we complete a passing blower door test score within two hours and provide the required paperwork to close out the building permit promptly.

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Schedule Your blower door test in Medford township, NJ

Receive professional, accurate, and certified blower door test in Medford township, NJ from our highly skilled technicians. Whether you’re a homeowner improving energy performance or a contractor completing certification, we make sure each test fulfills all energy code requirements.

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